
# def add (a = 9, b = 10):
#     return a + b

# def mul(a = 1 ,b = 9):
#     return a+b,a*b,a-b

# print(add(3,5))
# print(add(3))
# print(add())

# ret = mul(5,12)

# print(mul())
# print(ret)

# def add_plus (a , *b):
#     for val in b:
#         a+=val
#     return a
# print(add_plus(4,8,4,1))


# def func(a = 8 , b = 9):
#     global tmp 
#     tmp= a+b
#     return a+b
# print(func())
# print(tmp)

def many(n = 3):
    if(n == 1):
        return 1
    return n*many(n-1)
print(many(6))
